Bad patents

Many old patents are replaced by new and better patent and many patents are maked by thinking, not by practically experiments.

Reissue 5,110 of 112,258 Chest-Protectors replaced by 146,879 Lung-Protectors.

2,035 Corset. Side lacings are bad idea. 

767,030 Lacing

176499 childrens corset. If a child use a corset, the child have need of a corset like a adult corset.